Over 21 Years Only Adhesive Notice Sign (12cm x 10cm) - Silver
Product description
What it is
This is an adhesive notice sign clearly indicating that entry is restricted to adults over 21. It’s designed for door security in venues such as bars, pubs, clubs, nightclubs, amusement arcades and casinos. The sign is produced with a metallic silver finish and can be configured so the engraving is either black or white depending on the colour chosen.
Materials and finish
The sign is made from waterproof acrylic with a thickness of 1.6 mm, contributing to durability in busy environments. It features a strong 3M adhesive backing for straightforward, mess-free installation on doors or frames.
Colour and engraving options

- Silver base with black engraving, or
- Silver base with white engraving, or
- Red engraving on Yellow or Black on Yellow, depending on the chosen colour variant. The metallic effect enhances visibility in dim lighting, common in venues where adult-only entry is relevant.
Size and visibility


The approximate size is 12 cm wide by 10 cm high, a practical footprint that remains noticeable without dominating a doorway.
Installation tips
Clean the mounting surface, peel back the protective backing, and press firmly to ensure a good seal. The 3M backing is designed to provide a reliable hold, but avoid applying to dusty or non-uniform surfaces. If repositioning is required, do so promptly to maintain adhesive integrity.

Practical usage and suitability
If your premises require clear signage to indicate adult-only access, this sign offers a straightforward, low-maintenance option. It’s well suited to high-traffic entrances where quick recognition matters. It isn’t a substitute for broader access policies or security procedures, but it can complement them by providing a clear visual cue at entry.
What to consider before buying
- It is a single-sided notice sign with a fixed colour/engraving option. If you need multiple messages or variable signage, you may require additional units.
- The sign uses a 3M adhesive—great for smooth, clean surfaces, rough or textured surfaces may reduce adhesion.
- While the material is durable, consider whether your venue experiences heavy abrasion or frequent cleaning with harsh chemicals, which could affect longevity over time.

How it compares to alternatives

For venues prioritising quick, simple installation and a durable, wipe-clean surface, this adhesive sign is a sensible option over more elaborate metal or vinyl signs. If you anticipate frequent signage changes or need a more prominent display, you might look at larger signs or multiple signage variants.
Practical example of use
Imagine a busy nightclub doorway: bar staff can easily spot the sign at a glance as patrons approach the entrance, reducing miscommunications about who qualifies for entry while maintaining a neat, professional look.
FAQ (where data allows)
- Is it easy to remove without residue? The backing is designed for strong adhesion, removal may depend on the surface and time adhered.
- Will the engraving colours remain readable in low light? The contrast (black/white engraving) is chosen to improve legibility against the metallic silver background.
- How durable is the sign against cleaning? The acrylic is waterproof and wipe-clean, but prolonged exposure to abrasive cleaners may affect surface finish over time.
Buying verdict
Is it worth it?
Worth considering if you run an adult-oriented venue and need a straightforward, durable notice sign that’s quick to install and simple to maintain. It suits venues prioritising clear visual cues with minimal fuss. Not ideal if you require frequent content changes or signs for varied policies. If you prioritise value-for-money and predictable performance in a busy entrance, this sign is a sensible addition to your door security kit.
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